That's the track from a blizzard lizard - its on the same evolutionary limb as the snow snake and ice mice. They evolved in order to survive the perils of extreme cold weather, and have been able to survive for hundreds of years due to their unique blood type, which is known by its scientific name Prestoneius Nofreeziius. While a closely guarded industry secret, certain companies milk these lizards and package the product in bright yellow jugs, advocating that the contents be used in automotive radiators.